HIGH DIELECTRIC PERMITTIVITY IN SOL-GEL DERIVED SIO2-AS2O3 GLASSES

被引：11

作者：

DATTA, A

GIRI, AK

CHAKRAVORTY, D

机构：

[1] Indian Association for the Cultivation of Science, Jadavpur

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 04期

关键词：

D O I：

10.1063/1.106388

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Glasses in the system x As2O3(1 - x) SiO2 with 0.05 < x < 0.16 have been prepared by sol-gel route. They exhibit anomalously large dielectric permittivity in the temperature range 275 to 325 K. The permittivity values are found to be in the range 400-100 000 depending on the glass composition and the frequency of measurement. This effect is believed to arise due to a fairly large value of ratio [As5+]/[As3+] in these glasses and its drastic change as a function of temperature.

引用

页码：414 / 416

页数：3

共 9 条

[1]

BURNS G, 1983, PHASE TRANSITION, V5, P261

[2] DETERMINATION OF SEVERAL VALENCES OF IRON, ARSENIC AND ANTIMONY, AND SELENIUM IN GLASS [J].